Portable mixing unit for chemicals and the like



Oct. 16, 1951 JENNINGS 2,571,366

PORTABLE MIXING UNIT FOR CHEMICALS AND THE LIKE Filed Oct. 4, 1949 5 9 /Z d 32 2632, 4 .7 j 7 Patented Oct. 16, 1951 UNITED STATES PATENT OFFICE PORTABLE MIXING UNIT FOR CHEMICALS AND THE LIKE Fredrick L. Jennings, Application October 4, 1949, Serial No. 119,409

2 Claims.

This invention relates to a portable mixing unit, and particularly for the purpose of mixing chemicals in a large drum.

An object of my invention is to provide a novel portable mixing unit which can be quickly and easily attached to an oil drum, of the well known and usual type, or to any drum of the type commonly used in the oil industry.

Another object of my invention is to provide a novel portable mixing unit which is attachable to a metal drum, the lower bearing for the mixer shaft resting in the bottom of the barrel and positioned by means of radial arms.

Another object of my invention is to provide a novel portable mixing unit which is simple in construction, inexpensive to manufacture and effective in use.

Other objects, advantages and features of invention may appear from the accompanying drawing, the subjoined detailed description and the appended claims.

In the drawing: 7

Figure 1 is a longitudinal sectional view of an oil drum showing my mixing unit positioned thereon.

Figure 2 is a fragmentary perspective view of the top channel.

Figure 3 is an enlarged fragmentary sectional view taken on line 33 of Figure 1.

Figure 4 is a sectional view taken on line 4-4 of Figure 1.

Figure 5 is a sectional view taken on line 5-5 of Figure 1.

Referring more particularly to the drawing, the numeral I indicates a metal drum or barrel, preferably an oil drum, the construction of which is usual and well known. A drain valve 2 is provided at the bottom of the drum I for the purpose of draining the chemicals from the drum after they are mixed.

My portable mixing unit 3 consists of a channel 4, which extends diagrammatically across the top of the barrel I. The channel is provided with notches 5, adjacent both ends so that the channel will fit on to the top of the drum I. Set screws 6'I thread into the ends of the channel 4 and bear against the side of the barrel I, thus holding the channel 4 securely in position on the top of the drum.

A gear box 8 is bolted or otherwise secured to the top of the channel 4 and an electric motor 9 drives the shaft I0, which extends into the gear box and drives the gears therein. A mixing shaft II projects downwardly from the gear box 8 and extends into the drum I for substantially the entire height of this drum.

Long Beach,- Calif.

The upper end of the mixing shaft II is journalled in the gear box 8 or in the bearing I2 in the bottom of the box. The lower end of the shaft extends into a bearing I3, which rests on the bottom of the drum I. The bearing is held in a central position in the drum by a plurality of radial fingers I4.

The mixing of the material in the barrel is accomplished by a plurality of plates I5, which are welded to the shaft II. Additional radial plates, which extend horizontally and indicated at I6, are welded to the plate I5, or to the shaft II. Vertical mixing plate I1 completes the rectangular mixing plate construction. The bottom plates are tilted, as shown in Figure 3, so that the material is agitated at the bottom of the drum or barrel I.

When it is desirable to use my mixing unit, it is only necessary to drop the bearing I3 into the bottom of a drum or barrel, the arms I4 centering this bearing, the channel 4 carrying the motor, the gear box and the mixing shaft II with its blades I5, I6, I1 and I8 is now lowered into the barrel and with the channel 4 resting on top of the barrel, the shaft II will find the bearing I3' and enter the same and thereafter the set screws 6 and 1 are seated against the outside of the barrel and the unit is ready to operate.

Having described my invention, I claim:

1. A portable mixing unit adapted to be mounted on a drum, comprising a channel, said channel having notches cut therein to fit on to the top 01 the drum, a set screw extending through the channel and bearing against the drum, a motor mounted on thechannel, a gear box mounted on the channel, a drive shaft eX- ing radially from the mixing shaft, a bottom bearing resting on the bottom of the drum, and fixed radial arms extending from the bottom bearing to center said bearing in the drum.

2. A portable mixing unit adapted to be mounted on a drum, comprising a channel, said channel having notches cut therein to fit on to the top of the drum, 3, set screw extending channel and bearing against the a plurality of fiat plates welded to the first named plates and forming a rectangular mixing blade,

a bottom bearing loosely positioned in the drum and resting on the bottom of the drum, and fixed Number radial arms extending from said bottom bearing 776 383 to center the bearing in the drum. 9361400 5 1,814,964 FREDRICK L. JENNINGS. 2,035,646 2,448,927

REFERENCES CITED The following references are of record in the 10 Nu ber UNITED STATES PATENTS Name Date Bryan Nov. 29, 1904 Arnold Oct. 12, 1909 Robinson July 14, 1931 Farrington Mar. 31, 1936 Fischer Sept. '7, 1948 FOREIGN PATENTS Country Date Denmark July 11, 1932 Great Britain June 4, 1925 

